CVE-2026-15163
wireshark: Wireshark: Denial of Service via multiple protocol dissector infinite loops
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · July 9, 2026
Updated · July 10, 2026
Description
A flaw was found in Wireshark. A local user could trigger multiple protocol dissector infinite loops by providing specially crafted network traffic for analysis. This could lead to a Denial of Service (DoS) condition, making the application unresponsive.
Statement
This Moderate impact flaw in Wireshark allows a local attacker to trigger multiple protocol dissector infinite loops, leading to a denial of service. Exploitation requires a local user to open and analyze specially crafted network traffic, limiting the attack vector to interactive use cases rather than automated or remote exploitation.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
To mitigate this issue, users should avoid analyzing untrusted or suspicious network capture files with Wireshark. Exercise caution when opening network traffic from unknown sources to prevent triggering the denial of service condition.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CWE-835 · Loop with Unreachable Exit Condition ('Infinite Loop')